Hand-brake



W. Hl SAUVAGE.

HAND BRAKE.

APPLICATION FILED AuGJ. 1919.

1,343,007. f Patented June 8,1920.

liar/7g@ HAND-BRAKE.

renacer.

Application filed August 7, 1919.

To all whom t may concern.'

Be it known that I, VILLIAM H. SAUVAGE, a citizen of the United States,residing at Flushing, Long Island, in the county of Queens and State ofNew York, have invented certain new and useful Improvements inHand-Brakes, of which the following is a specification.

This invention relates to improvements in hand brakesA and moreparticularly to brakes adapted for use on railway vehicles of all types.

One of the objects of the present invention is to provide a hand brakeof simple and practical construction having few parts not likely to getout of order, thereby rendering the device reliable and efiicient inoperation.

A further object is to provide a high power, quick action hand brake ofthe worm type which may be easily and quickly applied and released.

A further object is to provide a hand brake having relatively few partswhich may be inexpensively manufactured, assembled and installed in carsnow in use without changing the operation or installation of thefoundation brake rigging.

Other objects will be in part obvious from the annexed drawings and inpart indicated in connection therewith by the following analysis of thisinvention.

This invention accordingly consists in the features of construction,combination of parts and in the unique relations of the members4 and inthe relative proportioning and disposition thereof, all as morecompletely outlined herein.

To enable others skilled in the art so fully to comprehend theunderlying features thereof that they may embody the same by thenumerous modifications in structure and relation contemplated by thisinvention, drawings depicting a preferred form have been annexed as apart of this disclosure, and in such drawings, like characters ofreference denote corresponding parts throughout all the views, in which-Figure 1 is an elevational view partly in section showing such parts ofthe brake mechanism as are necessary to fully understand the invention.

Fig. 2 is a detail perspective view of one of the parts.

Fig. 3 is a detail sectional View.

Specification of Letters Patent.

tially as follows Patented J une 8, 1920.

Serial No. 315,907.

Figs. 4 and 5 are detail plan views of a portion of the gearing.

Referring now to the drawings in detail, 10 denotes a casing of anydesired type adapted to be secured by fastening means passing throughperforated ears 11 to the end wall of the car, for example. This casingis preferably provided with a removable front cover secured in place inany desired manner, whereby the parts may be easily and quicklyassembled. A separate member 12 is preferably secured to the top of thecasing by means of bolts 13 in which the gearing-s shown in Figs. 4 and5 is adapted to be mounted. An operating shaft 1-1 is provided with anysuitable turning mechanism such as the hand wheel 15 for applying thebrakes.

The internal mechanism comprises wormsV 16 and 17 at opposite sides ofthe casing mounted in suitable bearings 18 at their lower ends whiletheir upper ends extend through the partition between the main casing 10and top plate 12 where they are provided with gears 20 and 21 mountedupon squared or keyed portions 22 and 23 of the worm shafts 16 and 17respectively. Intermediate these gears 20 and 21 is a gear 2a mounted onthe squared portion of the shaft 111. It will thus be seen that as thehand wheel 15 is rotated these gears will also be rotated in thedirection of the arrows to cause them to rotate the worms in the samerelative direction.

Between the worms 16 and 17 is a block 25 shown in Fig. 3 provided withthreaded portions adapted to coact with the worm. Thus as the wormrotates this block 25 will be moved relatively upwardly, thereby toexert a pull upon a chain 26 pivoted to the block at 27. The oppositeend of this chain is connected in any desired manner to the foundationbrake rigging beneath the car.

1t will, of course, be understood that the hand wheel 15 and its shaft14 may be directly connected with either the squared portion 22 or 23 asshown, for example, in Fig. 5, in which case the central gear 211, Fig.5, is mounted on a round stud 30 to rotate freely and merely act as anidler between the gears 20 and 21.

The operation of this device is substan- On turning the hand wheel 15motion is transmitted to the gear to which it is connected, that is, thegear 2-1,

if necessary to prevent a relative turning of the block. In this mannerthe desired pull of high power is transmitted through the chain 26 tothe brake rigging.

From the above itrwill be seen that the present invention provides asimplel and practical hand brake mechanism having relatively few partswhich may be inexpensively manufactured and assembled, and are unlikelyto get out of order. The brake'is foundto be most efiicient in use andoperation. The invention is designed to overcome objections in brakerigging now in general use and is believed to accomplish, among others7all objects and advantages herein set forth.

I realize that considerable variation is possiblein the details ofconstruction and arrangement of parts without departing from v thespirit of my invention, and I therefore with, means connecting saidblock with the` foundation brake rigging, and gears associated with saidworms, including a gear associated with each worm, and a geartherebetween, and a hand wheel connected with the central one of saidgears.

2. In a hand brake mechanism, in com bination, a casing, a pair ofoppositely and vertically disposed worms mounted therein, a block havingthreaded engagement with said worms and capable of longitudinal movementwith respect tothe worms, means connecting said block with thefoundation brake rigging, a hand operated member, and means including ashaft connected with a central pinion for operating said block.

In testimony whereof I aiix my signature.

WILLIAM H. SAUVAGE.

